Nordic’s nRF52840 Bluetooth 5/Bluetooth LE SoC supports complex Bluetooth LE and other low-power wireless applications that were previously not possible with a single-chip solution. The SoC combines a 64MHz, 32-bit Arm Cortex M4F processor with a 2.4GHz multiprotocol radio with 1MB Flash memory and 256kB RAM. The chip supports all the features of Bluetooth 5 including 4x the range or 2x the raw data bandwidth (2 megabits per second) compared with Bluetooth 4.2.

The sensor node integrates multiple sensors from Kionix and Rohm. These sensors enable the measurement of 3D-acceleration, 3D-magnetism, 3D-rotation, atmospheric pressure, and temperature by default sensors.

This sensor node can be used in prototyping and developing consumer IoT applications ranging from wearables, health and wellness, games and toys, and smart home devices to Industrial IoT applications such as smart city sensor networks, asset management and logistics monitoring and factory automation.

A key feature of RoKi sensor node is its focus on power, both in terms of flexibility and low power consumption. It can be powered by a rechargeable Li-Polymer battery, replaceable coin cell batteries or via Micro USB.

The automated power consumption system of the Bluetooth 5 SoC and the configurable power management modes of the sensors, make the RoKi sensor node a long-running, low power consuming system with a small footprint. The active time is about eight hours of typical usage and an estimated standby time of 200 hours.